Improvement in sash-fastener



Swine @utenti MAHLONR. MARGERUM-or TRENTON, NE-W'JERSEY. Lem/reparan No. 87,418,- datefz Ma/mh 2, 1869.

IMPRQVEMENT IN` sAsH-PASIENER. E

`'The Schedule referred to in these Letters Patent and making par; of the isame.

To f:cham 'it may concern v Y Be it known that I, MAHLON It. MARGERUM, of the city of Trenton, State of New Jersey, have inventeda Sash-Lock for the supporting and locking,

escutcheon I, Figure 2, and' prevents the key from beingl withdrawn, except `at the point' at which the stud and r:slot coincide.

44To raise the, sash, the eccentric is turned' by the key, or crank, which should be turned up. To lower the sash, the key or crank shouldbe turned down, but Wherever placed, the sash is fastened, until the crank is used to relieve it. A

I do not claim lthe eccentric or cam-levers and the springs, as theyare old and well known; 'bnt What I do claim, is-

Thesash-lock4 1 with the cam-levers, or arms B, spring E, in combination With key F and stud g, and

vtheslot h in the escutcheon I, all constructed and arranged as described. g

MAHLON R.' MARGERUM.-

Witnesses: A

OHAs. B; Goe'ILL, Ones. H. BOTTOM. 

